Ricoh B246 SERIES, Manual, Page: 244 / 268

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Pressure Roller
„
This mechanism makes sure
that the hot roller and pressure
roller touch only when the
machine makes copies.
„
This prevents damage to the
pressure roller.
„
This is done with a cam and
pressure lever.
„
The fusing pressure release
motor controls the mechanism.
„
The fusing pressure release HP
sensor detects the correct time
to switch the motor off.
„
There is no pressure
adjustment. Pressure is
applied, or not applied.
HP Sensor
Motor
Cam Pressure Lever
Service manual, section 6.12.3
ˆ
Ask the class to study the description of the mechanism in the service manual, and
to study the mechanism on the machines in the classroom.